File: dyn-dispatch-bifurcate.cpp

package info (click to toggle)
llvm-toolchain-3.4 1%3A3.4.2-13
  • links: PTS, VCS
  • area: main
  • in suites: jessie, jessie-kfreebsd
  • size: 253,236 kB
  • ctags: 276,203
  • sloc: cpp: 1,665,580; ansic: 298,647; asm: 206,157; objc: 84,350; python: 73,119; sh: 23,466; perl: 5,679; makefile: 5,542; ml: 5,250; pascal: 2,467; lisp: 1,420; xml: 679; cs: 236; csh: 117
file content (38 lines) | stat: -rw-r--r-- 857 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
// RUN: %clang_cc1 -analyze -analyzer-checker=core,debug.ExprInspection -analyzer-config ipa=dynamic-bifurcate -verify %s

void clang_analyzer_eval(bool);

class A {
public:
  virtual int get() { return 0; }
};

void testBifurcation(A *a) {
  clang_analyzer_eval(a->get() == 0); // expected-warning{{TRUE}} expected-warning{{UNKNOWN}}
}

void testKnown() {
  A a;
  clang_analyzer_eval(a.get() == 0); // expected-warning{{TRUE}}
}

void testNew() {
  A *a = new A();
  clang_analyzer_eval(a->get() == 0); // expected-warning{{TRUE}}
}


namespace ReinterpretDisruptsDynamicTypeInfo {
  class Parent {};

  class Child : public Parent {
  public:
    virtual int foo() { return 42; }
  };

  void test(Parent *a) {
    Child *b = reinterpret_cast<Child *>(a);
    if (!b) return;
    clang_analyzer_eval(b->foo() == 42); // expected-warning{{UNKNOWN}}
  }
}